RE: Ping returning wrong address

With all due respect, Windows (at lease W2K and beyond) does honor TTL
settings for DNS, hence the need for ipconfig /flushdns. Now I can't comment
on the 95/98/ME line, but I don't consider those ready for corporate use
anyway. (Yes, I know LOTS of companies do use them, but I think they should
only be used at home, and even then I'll always pay the extra for W2K/XPPro)

-Walden

------------
Walden H Leverich III
President
Tech Software
(516)627-3800 x11
WaldenL@TechSoftInc.com
http://www.TechSoftInc.com



-----Original Message-----
From: KirkG@PacInfoSys.com [mailto:KirkG@PacInfoSys.com]
Sent: Wednesday, November 28, 2001 2:17 PM
To: midrange-l@midrange.com
Cc: midrange-l@midrange.com; midrange-l-admin@midrange.com
Subject: Re: Ping returning wrong address


Rob, I agree with Jeff. The AS/400 follows the standard when it come to How
Long to cache the DNS info for an address. Windows for example ignores the
time-out value and will Always do a look-up. When the DNS info is sent to a
computer, along with it is a value that tells the computer how long to use
its cached info for that address. The iSeries does what is told. If the data
time-out is set to 5mins or indefinitely that's what it will do. Find out
what the time-out is set to.



---------------------------------
Kirk Goins
IBM Certified AS/400 Technical Solutions
Pacific Information Systems - An IBM Premier Business Partner
503-674-2985           kirkg@pacinfosys.com
"WE KNOW TECHNOLOGY"
---------------------------------





rob@dekko.com
Sent by: midrange-l-admin@midrange.com
11/28/2001 08:35 AM
Please respond to midrange-l


        To:     midrange-l@midrange.com
        cc:
        Subject:        Ping returning wrong address



We have multiple IP addresses set up in our TCP/IP interfaces on this one
400.  Each Domino server has it's own.  Well the NT people here got cute and
used one of our IP addresses for one of our Domino servers and set that up
in the DNS for the 400 itself.  10.10.1.186 is for the Domino server
GDSHELP.  10.10.1.123 is for the 400 GDIMAIL.  But I ping GDIMAIL from
elsewhere and it went to 10.10.1.186.  Well, I got the Cisco kid to fix the
DNS.  Now when I ping GDIMAIL from my PC I get 10.10.1.123.  However when I
ping GDIMAIL from another 400 it still goes to 10.10.1.186.  I checked the
host table on the source 400 and there is no GDIMAIL, no GDSHELP and no
10.10.1.186.  I checked out the address of the DNS using 12. Change TCP/IP
domain information and it matches the address of the dns from my PC.  So I
tried adding a host table entry for 10.10.1.123 to GDIMAIL.  Now when I ping
GDIMAIL it works.  I removed the host table entry and it goes back to
10.10.1.186.  Is there some sort of cache or am I missing something?

I'll probably leave the host table in for a workaround.






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